/* Farben, Radien und Abstände aus identity/designs/bks.md (bks-lab), keine Werte von Hand. */
:root {
  color-scheme: light dark;
  --primary: #0F2A4A;
  --primary-hover: #0B2038;
  --secondary: #2D5B8F;
  --accent: #5FA0D9;
  --accent-subtle: #E6F0FA;
  --accent-line: #D3E4F6;
  --surface: #FAF7F3;
  --surface-raised: #FFFFFF;
  --surface-muted: #F1F5F9;
  --on-surface: #1A2433;
  --on-surface-muted: #475569;
  --on-primary: #FFFFFF;
  --border: #E2E8F0;
  --border-strong: #94A3B8;
  --success: #2D7A5F;
  --danger: #A33B36;
  --r-sm: 4px; --r-md: 6px; --r-lg: 10px; --r-xl: 14px; --r-full: 9999px;
  --s-xs: 4px; --s-sm: 8px; --s-md: 16px; --s-lg: 24px; --s-xl: 32px;
  --font: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Playfair Display", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --primary: #0F2A4A;
    --primary-hover: #1A4475;
    --secondary: #5690D2;
    --accent: #5FA0D9;
    --accent-subtle: #182A40;
    --accent-line: #345373;
    --surface: #101419;
    --surface-raised: #191E24;
    --surface-muted: #20252C;
    --on-surface: #E7EAEE;
    --on-surface-muted: #A8B1BD;
    --on-primary: #FFFFFF;
    --border: #333E4C;
    --border-strong: #67778E;
    --success: #43A37B;
    --danger: #CE6964;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--surface); color: var(--on-surface); font: 400 15px/1.65 var(--font); }
a { color: var(--secondary); }
button, input, textarea, select { font: inherit; color: inherit; }
[hidden] { display: none !important; }

.topbar {
  display: flex; align-items: center; gap: var(--s-md); flex-wrap: wrap;
  background: var(--surface-raised); border-bottom: 1px solid var(--border);
  padding: var(--s-sm) var(--s-md); min-height: 56px;
}
.wordmark { font: 500 20px/1.2 var(--font-display); color: var(--on-surface); text-decoration: none; }
.eyebrow { font: 600 12px/1.2 var(--font); letter-spacing: .14em; text-transform: uppercase; color: var(--secondary); }
.who { margin-left: auto; font-size: 13px; color: var(--on-surface-muted); }

main { max-width: 1120px; margin: 0 auto; padding: var(--s-lg) var(--s-md) var(--s-xl); }
h1 { font: 500 32px/1.2 var(--font-display); margin: var(--s-xs) 0 var(--s-lg); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-xs);
  min-height: 40px; padding: 6px 18px; border-radius: var(--r-md);
  border: 1px solid var(--secondary); background: var(--surface-raised); color: var(--on-surface);
  font: 600 13px/1.25 var(--font); cursor: pointer; text-decoration: none; white-space: nowrap;
}
.btn:hover { background: var(--accent-subtle); }
.btn-primary { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--border-strong); outline-offset: 2px; }

input[type=text], input[type=search], input[type=password], textarea, select {
  width: 100%; min-height: 40px; padding: 8px 12px; border: 1px solid var(--border); border-radius: var(--r-md);
  background: var(--surface-raised);
}
label { display: block; font-size: 13px; color: var(--on-surface-muted); }
label > input, label > textarea, label > select { margin-top: var(--s-xs); }

.search { display: flex; gap: var(--s-sm); margin-bottom: var(--s-lg); }
.search input { flex: 1; }

.drop {
  border: 1.5px dashed var(--border-strong); border-radius: var(--r-xl); background: var(--surface-raised);
  padding: var(--s-lg); margin-bottom: var(--s-lg);
}
.drop.over { border-color: var(--accent); background: var(--accent-subtle); }
.drop-hint { margin: 0 0 var(--s-md); color: var(--on-surface-muted); }
.drop-hint strong { color: var(--on-surface); }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--s-md); }
.form-actions { display: flex; gap: var(--s-sm); align-items: center; flex-wrap: wrap; margin-top: var(--s-md); }
.status { font-size: 13px; }
.status.ok { color: var(--success); }
.status.err { color: var(--danger); }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--s-md); list-style: none; padding: 0; margin: 0; }
.card {
  display: flex; flex-direction: column; gap: var(--s-sm);
  background: var(--surface-raised); border: 1px solid var(--border); border-radius: var(--r-lg); padding: var(--s-lg);
  transition: transform .15s, box-shadow .15s;
}
.card:hover { box-shadow: 0 8px 20px -6px rgb(15 42 74 / 0.10); transform: translateY(-2px); }
.card h3 { font: 600 17px/1.4 var(--font); margin: 0; }
.card h3 a { color: var(--on-surface); text-decoration: none; }
.card h3 a:hover { color: var(--secondary); }
.card p { margin: 0; color: var(--on-surface-muted); font-size: 14px; overflow-wrap: anywhere; }
.card .match { font-size: 13px; font-style: italic; }
.meta { margin-top: auto; font-size: 12px; color: var(--on-surface-muted); }
.tags { display: flex; flex-wrap: wrap; gap: var(--s-xs); }
.tag {
  border: 1px solid var(--accent-line); background: var(--accent-subtle); color: var(--on-surface);
  border-radius: var(--r-full); padding: 1px 10px; font-size: 12px; cursor: pointer;
}
.empty { color: var(--on-surface-muted); }
.filter { margin: 0 0 var(--s-md); font-size: 13px; }

/* Kategorien, Tag-Wolke, Filterleiste */
.layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: var(--s-lg); align-items: start; }
.side { position: sticky; top: var(--s-md); display: flex; flex-direction: column; gap: var(--s-lg); }
.side h2, .group-title { font: 600 12px/1.2 var(--font); letter-spacing: .14em; text-transform: uppercase; color: var(--secondary); margin: 0 0 var(--s-sm); }
.side-toggle { display: none; }
.facet { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.facet-item {
  display: flex; justify-content: space-between; align-items: center; gap: var(--s-sm); width: 100%; text-align: left;
  border: 1px solid transparent; background: none; border-radius: var(--r-md); padding: 6px 10px; cursor: pointer; font-size: 14px;
}
.facet-item:hover { background: var(--accent-subtle); }
.facet-item.on { background: var(--primary); color: var(--on-primary); }
.facet-item.zero { color: var(--on-surface-muted); opacity: .6; }
.facet-item .n, .group-title .n { font-size: 12px; font-variant-numeric: tabular-nums; color: var(--on-surface-muted); }
.facet-item.on .n { color: var(--on-primary); }
.group-title .n { margin-left: var(--s-sm); letter-spacing: 0; }
.group { margin-bottom: var(--s-lg); }
.tagcloud { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px var(--s-sm); margin: 0 0 var(--s-md); }
.cloud-tag { border: 0; background: none; padding: 2px 4px; border-radius: var(--r-sm); cursor: pointer; color: var(--secondary); line-height: 1.3; }
.cloud-tag:hover { background: var(--accent-subtle); }
.cloud-tag.on { background: var(--primary); color: var(--on-primary); }
.cloud-tag.s1 { font-size: 12px; } .cloud-tag.s2 { font-size: 14px; } .cloud-tag.s3 { font-size: 16px; }
.cloud-tag.s4 { font-size: 19px; } .cloud-tag.s5 { font-size: 23px; font-weight: 600; }
.chips { display: flex; flex-wrap: wrap; gap: var(--s-sm); margin: 0 0 var(--s-md); }
.chip { border: 1px solid var(--secondary); background: var(--accent-subtle); border-radius: var(--r-full); padding: 2px 12px; font-size: 13px; cursor: pointer; }
.viewswitch { display: flex; align-items: center; gap: var(--s-sm); margin-bottom: var(--s-md); }
.viewswitch .btn[aria-pressed="true"] { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
.viewswitch .count { margin-left: auto; font-size: 13px; color: var(--on-surface-muted); }
.marks { display: flex; flex-wrap: wrap; gap: var(--s-xs); }
.mark { border: 1px solid var(--border); background: var(--surface-muted); color: var(--on-surface-muted); border-radius: var(--r-sm); padding: 0 8px; font-size: 11px; font-weight: 600; letter-spacing: .04em; cursor: pointer; }
.mark-art { border-color: var(--accent-line); background: var(--accent-subtle); color: var(--secondary); }
@media (max-width: 800px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .side-toggle { display: inline-flex; justify-self: start; }
  .side { display: none; position: static; }
  .side.open { display: flex; }
}

.dev { margin-bottom: var(--s-lg); padding: var(--s-md); border: 1px solid var(--accent-line); background: var(--accent-subtle); border-radius: var(--r-lg); }

/* Ansicht: schmale Leiste oben, darunter das Canvas in voller Höhe */
body.viewer { display: flex; flex-direction: column; height: 100vh; height: 100dvh; overflow: hidden; }
.viewbar {
  display: flex; align-items: center; gap: var(--s-sm); flex-wrap: wrap;
  background: var(--surface-raised); border-bottom: 1px solid var(--border); padding: 6px var(--s-md);
}
.viewbar .title { font-weight: 600; min-width: 0; flex: 1 1 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.viewbar select { width: auto; min-height: 36px; padding: 4px 8px; }
.viewbar .btn { min-height: 36px; padding: 4px 12px; }
/* Fläche des Themes, kein festes Weiß: im Dunkelmodus blitzte es sonst beim Laden auf. */
.frame { flex: 1; border: 0; width: 100%; background: var(--surface); }
/* Unsichtbar, bis der Canvas geladen hat (public/viewer.js), damit sein heller Erstzustand nicht aufblitzt. */
.frame.loading { visibility: hidden; }
.view-msg { padding: var(--s-lg); color: var(--on-surface-muted); }
@media (max-width: 600px) {
  .viewbar .btn-label { display: none; }
  h1 { font-size: 26px; }
}

/* Hochladen ist eingeklappt, damit die Liste oben steht. Eine Datei über der Seite klappt es auf. */
.upload { margin: 0 0 var(--s-md); }
.upload > summary { display: inline-flex; list-style: none; cursor: pointer; }
.upload > summary::-webkit-details-marker { display: none; }
.upload[open] > summary { margin-bottom: var(--s-md); }
.field-gap { margin-top: 16px; }

/* Fassungsvergleich */
.diff { flex: 1; overflow: auto; padding: 12px 16px 32px; }
.diff-head { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; font-weight: 600; }
.diff-head label { font-weight: 400; display: inline-flex; align-items: center; gap: var(--s-sm); }
.diff-head label select { width: auto; margin: 0; }
.diff-sum { font-weight: 400; color: var(--on-surface-muted); }
.diff-note { margin: 6px 0 12px; font-size: 0.85em; color: var(--on-surface-muted); }
.diff-lines { list-style: none; margin: 0; padding: 0; font-size: 0.95em; line-height: 1.45; }
.diff-lines li { padding: 2px 8px 2px 26px; position: relative; white-space: pre-wrap; overflow-wrap: anywhere; border-radius: var(--r-sm); }
.diff-lines li::before { position: absolute; left: 8px; font-weight: 700; }
.diff-lines .neu { background: color-mix(in srgb, var(--success) 16%, transparent); }
.diff-lines .neu::before { content: "+"; color: var(--success); }
.diff-lines .weg { background: color-mix(in srgb, var(--danger) 14%, transparent); text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--danger) 60%, transparent); }
.diff-lines .weg::before { content: "−"; color: var(--danger); }
.diff-lines .gleich { color: var(--on-surface-muted); }
.diff-lines .auslassung { color: var(--on-surface-muted); font-style: italic; padding-left: 8px; }

/* Freigabe-Links (#10): Knopf und Bereich in der Ansicht, Marke auf der Karte, Seite /freigaben */
.toplink { margin-left: auto; font-size: 14px; text-decoration: none; }
.toplink:hover { text-decoration: underline; }
.toplink + .who { margin-left: 0; }
.btn-count { font-variant-numeric: tabular-nums; }
.btn-small { min-height: 32px; padding: 2px 10px; font-size: 13px; }
.btn[disabled] { opacity: .45; cursor: default; }
.btn[disabled]:hover { background: var(--surface-raised); }
.mark-shared {
  border-color: color-mix(in srgb, var(--success) 45%, transparent);
  background: color-mix(in srgb, var(--success) 12%, transparent); color: var(--success);
}
.lead { color: var(--on-surface-muted); margin: 0 0 var(--s-lg); max-width: 60ch; }

.share-panel {
  flex: none; max-height: 55vh; overflow: auto;
  background: var(--surface-raised); border-bottom: 1px solid var(--border); padding: var(--s-md);
}
.share-hint { margin: 0 0 var(--s-sm); font-size: 13px; color: var(--on-surface-muted); }
.share-form { display: grid; grid-template-columns: minmax(180px, 2fr) repeat(2, minmax(140px, 1fr)) auto; gap: var(--s-sm); align-items: end; }
.share-form .btn { min-height: 40px; }
.share-warn {
  margin: var(--s-sm) 0 0; padding: var(--s-sm) var(--s-md); font-size: 13px; border-radius: var(--r-md);
  border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent); background: color-mix(in srgb, var(--danger) 10%, transparent);
}
.share-status { margin: var(--s-sm) 0 0; font-size: 13px; overflow-wrap: anywhere; }
.share-status:empty { display: none; }
.share-head { display: flex; align-items: center; gap: var(--s-md); flex-wrap: wrap; margin: var(--s-md) 0 var(--s-sm); }
.share-head h2 { font: 600 14px/1.4 var(--font); margin: 0; }
.share-head a { margin-left: auto; font-size: 13px; }
.share-toggle { display: inline-flex; align-items: center; gap: var(--s-xs); font-size: 13px; }
.share-toggle input { margin: 0; }
.share-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: var(--s-sm); }
.share-item {
  display: grid; grid-template-columns: 1fr auto; gap: 2px var(--s-md); align-items: center;
  border: 1px solid var(--border); border-radius: var(--r-md); padding: var(--s-sm) var(--s-md); background: var(--surface);
}
.share-list-wide .share-item { background: var(--surface-raised); padding: var(--s-md); }
.share-item.inactive { opacity: .65; }
.share-main { display: flex; align-items: baseline; gap: var(--s-sm); flex-wrap: wrap; min-width: 0; }
.share-page { font-weight: 600; text-decoration: none; overflow-wrap: anywhere; }
.share-label { font-weight: 600; overflow-wrap: anywhere; }
.share-page + .share-label { font-weight: 400; color: var(--on-surface-muted); }
.share-meta { grid-column: 1; font-size: 13px; color: var(--on-surface-muted); overflow-wrap: anywhere; }
.share-url { grid-column: 1; font: 12px/1.5 var(--font-mono); color: var(--on-surface-muted); overflow-wrap: anywhere; word-break: break-all; }
.share-actions { grid-column: 2; grid-row: 1 / span 3; display: flex; gap: var(--s-xs); flex-wrap: wrap; justify-content: flex-end; }
@media (max-width: 700px) {
  .share-form { grid-template-columns: 1fr 1fr; }
  .share-form > label:first-child, .share-form .btn { grid-column: 1 / -1; }
  .share-item { grid-template-columns: 1fr; }
  .share-actions { grid-column: 1; grid-row: auto; justify-content: flex-start; }
}